Combined chair and desk



- Nov. 30, 1937.

M. m. PICKLE ETAL 0,597

COMBINED CHAIR AND DESK Filed Sept. 12,-1955 4 Sheets-Sheet l I nvenlors 1937 M. MOD. PICKLE ET AL 2,100,597

COMBINEDVCHAIR AND DESK Filed Sept. 12, 1955 4 Sheets-Sheet 2 0 \L 4 QM m l 1 Attorney Nov. 30, 1937.

M. Mc D. PICKLE AL COMBINED CHAIR AND DESK Filed Sept. 12, 1935 4 Sheets-Sheet 5 A llorney Noi 1937- M, McD. PICKLE ET AL 2,100,597

COMBINED CHAIR AND DESK Filed Sept. 12, 1935 4 Sheets-Sheet 4 I [nvenlofJ QMM/ ML v A Home};

Patented Nov. 30, 1937 Marion McDonald Pickle and Daniel E. Parsons,

Knoxville, Tenn. V Application September 12, 1935, Serial No. 40,334

3 Claims.

- The present invention relates to new and useful improvements in combination chairs and desks for use particularly in schools and has for its primary object to provide, in a manner as hereafter set forth, an article of this character embodying a novel construction, combination and arrangement of parts through the medium of which the seat, desk and back may be simultaneously adjusted by common means to accommodate children of different sizes. I

Other objects of the invention are to provid a combined chair and desk of the aforementioned character which will be comparatively simple in construction, strong, durable, highly eflicient and reliable in use, compact, light in weight, attractive in appearance and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views,- and wherein:-

Figure 1 is a view partially in side elevation and partially in vertical section of a combined chair and desk constructed in accordance with the present invention.

Figure 2 is a top plan View thereof.

Figure 3 is a vertical sectional view, taken substantially on the line 33 of Figure 2.

Figure 4 is a View in horizontal section, taken substantially on the line 4-4 of Figure 3. V

Figure 5 is a detail view in bottom plan of the 35 desk.

Figure 6 is a view in side elevation of the rear portion of the chair.

Figure 7 is a detail view in vertical transverse section, taken substantially on the line I-I of Figure 6.

Figure 8 is a view in cross section through a side portion of the chair, taken substantially on the line 88 of Figure 4.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a frame I of channel iron having secured thereon a seat 2, the rear portion of said seat being provided, adjacent the sides thereof, with longitudinal slots 3 (see Figure 2), the purpose of which will be presently set forth. Depending from the corner portions of the frame I are tubular guides 4 in which hollow legs 5 are slidably mounted for vertical adjustment. As best seen in Figure 1 of the drawings, the guides 4 are closed at their upper ends and the legs 5 are closed at their lower ends. Coil springs 6 are provided in the legs 5 for yieldingly urging said legs downwardly in a manner to facilitate raising the seat 2. Braces 'I extend between the lower end portions of. the guides 4.

The legs 5 are fixed on the free ends of the legs of a spider 8. Rotatably mounted on .a longitudinal bar 30 on the framel is a vertical 7 screw shaft 9.which is threadedly' engaged in the central or hub portion II] of the spider 8. At its upper end, the screw shaft 9 terminates .in a socket II which is rotatably engaged in a vertical opening which is provided therefor in the seat 2, said socket I I being for the reception of a removable actuating crank I2.

The reference numeral I3 designates generally a back which is mounted for longitudinal adjustment relative to the seat 2. The :back I3 includes posts I4 having depending brackets I5 on their lower ends extending slidably through the slots 3 in the seat 2. The brackets I5 include slides 3| which travel in the side members of the frame I. Extending between the lower portions. of the brackets I5, below the seat 2, is a bar I6. The reference numeral I'I designates a horizontal screw shaft which is journaled in suitable bearings I8 and I8'on the frame I and the seat 2, respectively, said screw shaft being 'threadedly engaged in the bar I6. Beveled gears I9 connect the screw shaft I] to the vertical screw shaft 9 for actuation therebyn Slats or similar members 20 extend between the posts I4 of the back I3.

Rising from the right front corner portion of the, frame I is a substantially tubular guide 2I which slidably receives a vertically adjustable post 22. Pivotally mounted for rocking adjustment on the upper end of the post 22is a desk 23'of suitable material, preferably wood. The desk 23 includesa rearwardly projecting arm portion 24 having mounted longitudinally therebeneath a sleeve 25. The sleeve 25 slidably receives a rod or the like 26 which is 'adjustably mounted on the adjacent post I4 of the back I3 by a bolt and wingnut connection I 21 which is slidably connected to said adjacent post I4 (see Figure 6). H The post 22 is hollow and said post is threadedly mounted on a screw shaft 28 which extends upwardly into the guide 2I through the closed lower end of said guide, as best seen in Figure 3 of the drawings. The screw shaft 28 is connected to the screw shaft 9 for actuation thereby through the medium of a chain and sprocket connection 29.

It is thought that the operation of the device will be readily apparent from a considera tion of the foregoing. When an adjustment is desired, the crank I2 is, of course, engaged in the socket I I on the upper end of the shaft 9. When the shaft 9 is rotated in one direction, the seat 2 will be elevated on the supporting legs 5, the back I3 will be moved rearwardly relative to said seat 2, and the desk 23 will be raised relative to the seat 2. When the screw shaft 9 is rotated in the opposite direction, the seat 2 will, of course, be lowered on the legs 5, the back I3 will be adjusted forwardly and the desk 23 will be simultaneously lowered. In addi tion to being vertically adjustable, the desk 23 may be conveniently adjusted to any desired inclination on the supporting post 22. When an adjustment is to be made, the connection 2'! is first loosened.

It is believed that the many advantages of a combined chair and desk constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A combined chair and desk comprising a frame, substantially tubular guides depending from said frame, supporting legs slidably mounted in said guides, a seat mounted on the frame, a back mounted for sliding adjustment in a horizontal plane on said frame, a guide rising from the frame, a post slidably mounted in the secondnamed guide, a desk rockably mounted on said post, means adjustably connecting the desk to the back, and common means for adjusting the seat on the legs and for adjusting the desk relative to said seat and for, adjusting the back simultaneously.

2. A combined chair and desk comprising a frame, substantially tubular guides depending from said frame, a seat mounted on said frame, a vertical screw shaft rotatably mounted on the frame, a spider threadedly mounted on said screw shaft, supporting legs mounted on the free ends of the legs of said spider and slidab-ly engaged in the guides, coil springs yieldingly urging said supporting legs downwardly in said guides, a back -slidably mounted on the frame for adjustment in a horizontal plane relative to theseat, said back comprising :posts, brackets on the lower ends of said posts, the seat having longitudinal slots therein, said brackets being operable in said slots, 2. bar extending between the brackets beneath the seat, a horizontal screw shaft rotatsecond-named screw shaft to the first-named screw shaft for actuation thereby, a substantially tubular guide rising from the frame, a post slidably mounted in the second-named guide, a-desk mounted for rocking adjustment on the second-named post, adjustable means con-' necting the desk to one of the first-named posts, and means operatively connecting the secondnamed post to the first-named screw shaft for actuation thereby for raising and lowering the desk relative to the seat. j

3. A combined chair anddesk comprising a seat, supporting means for saidseat including legs, a back for said seatmounted thereon, a vertically extensible sectional support upstanding from the front of said seat, a desk pivotally mounted on said support for vertical adjustment by extension of the support, a telescopic connection between said desk and back whereby vertical adjustment of said desk'causes the latter to swing into different inclined positions, and ma-v nipulative means for extending said support comprising a screw shaft operatively connected to one section of the support and one leg and having a sprocket wheel thereon for operating the same, ashaft rotatably supported by said legs and having a sprocket wheel fast thereon, and a sprocketchain connecting said sprocket wheels.

MARION McDONALD PICKLE. DANIEL E; PARSONS. 

